Hi all, I have deleted the column I added and tried all command line permutations of v.db.addcol map=contour_points_c...@permanent layer=1 `col="rast_value DOUBLE PRECISION"` v.db.addcol map=contour_points_c...@permanent layer=1 `columns="rast_value DOUBLE PRECISION"` that have so far been given in this thread, again with quotes and without. Unfortunately it does not recognise this command, which I why I used the GUI
The GUI is tcltk on GRASS 6.4 Micha - I have checked the points are within the raster (they were created from a contour map of the raster). The region is consistent with both the raster and vector Thanks! ________________________________ From: Micha Silver <[email protected]> To: Rebecca Bennett <[email protected]> Cc: Martin Landa <[email protected]>; [email protected] Sent: Wed, 9 June, 2010 10:12:28 Subject: Re: [GRASS-user] Re: Problems with v.what.rast On 09/06/2010 11:40, Rebecca Bennett wrote: > >Hi Martin, > >>I tried the command that Micha suggested v.db.addcol >map=contour_points_c...@permanent layer=1 >>columns="rast_value double precision" but this age the following error > > The quotes " " around the "rast_value DOUBLE PRECISION" are necessary. Just to check can we see the output of v.info -c Contour_points_cats You might also check that the points are all within the raster region. i.e.: v.info -g Contour_points_cats r.info -g Dartmoor1 g.region -p v.db.addcol Contour_points_cats col=rast_value DOUBLE PRECISION >>Sorry <DOUBLE> is not a valid option >>Sorry <PRECISION> is not a valid option > >>So through the GUI I added a column to the attribute table which gave >the command line out put >>v.db.addcol map=contour_points_c...@permanent layer=1 >{columns=rast_value double precision} > >>cheers! > > > > ________________________________ From: >Martin Landa <[email protected]> >To: Rebecca Bennett ><[email protected]> >Cc: Micha Silver ><[email protected]>; [email protected] >Sent: Wed, 9 June, >2010 9:37:14 >Subject: Re: >[GRASS-user] Re: Problems with v.what.rast > >>Hi, > >>2010/6/9 Rebecca Bennett <[email protected]>: >>> I added a column v.db.addcol map=contour_points_c...@permanent >layer=1 >>> {columns=rast_value double precision} (as my raster is a float), >then ran >>> with error > >>how did you get this command? > >>It should be > >>v.db.addcol map=contour_points_c...@permanent layer=1 >>columns="rast_value double precision" > >>Martin > >>-- >>Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa > > > >>This mail was received via Mail-SeCure System. > -- Micha Silver http://www.surfaces.co.il/ Arava Development Co. +972-52-3665918
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